2015 R3R Main Harness replacement

[PappyBlade]

A local shop, which I will not name, in the interest of diagnosis, cut the living hell out of my main harness. I took it to a local Triumph dealer, who said I need a new main harness just to diagnose why the bike is dead electronically. We're assuming it's the ECM(ECU, whatever).
Am I taking on too big a project, or is this a simple yet tedious task?
Anyone close enough to actually come HELP would be welcome!!!

 

[Kevin frazier]

Ive changed out a harness on a touring, its plug and play. Its two harnesses, i would suggest another shop, this is simple diagnosis of electrical. They should be able to say pin 38 on ecm is not sending power to relay, etc etc, not you need a new wiring harness, as long as there is continuity in each wire being checked then youre good, and every pin at ecu can be checked. @Rocket Scientist just replaced a bad ecu, he diagnosed the problem and changed the correct part, in that case it was the ecu as he found out by diagnosing.

 

[TURBO200R4]

A local shop, which I will not name, in the interest of diagnosis, cut the living hell out of my main harness. I took it to a local Triumph dealer, who said I need a new main harness just to diagnose why the bike is dead electronically. We're assuming it's the ECM(ECU, whatever).
Am I taking on too big a project, or is this a simple yet tedious task?
Anyone close enough to actually come HELP would be welcome!!!

well i had a gentleman in Canada with a rocket that would fail to start some of the time and it had been worked on by a few experts it had the expensive guard dawg installed in it and one of the experts cut all the head relays and wiring out of it so no headlights and still had a rocket that would fail to start.
the so call experts would not even look at it.
any we used google meet on phones so he could put the camera on whatever i needed to see it took a long time but we finally got it fixed . now he knew nothing about nothing when we started so i even had to teach him how to read volts on the meter and to use a 12 volt test light.
i really can not see changing the wiring harness i think that first try to repair.
may bbe a couple of us can help.

 

[TURBO200R4]

if the bike is dead electronically that should be a piece of cake to diagnose
take a 12 volt test light turn on the ignition switch and on the tester put clamp on negative and start checking each side of the fuses.